Note that the hashtable micro-benchmarks open-sourced by Google cannot be used to figure out which of the two hashtable implementations is faster. See https://g

Note that the hashtable micro-benchmarks open-sourced by Google cannot be used to figure out which of the two hashtable implementations is faster. See https://groups.google.com/forum/#!topic/hashtable-benchmarks/2-cbY4cJfIc https://groups.google.com/forum/#!topic/hashtable-benchmarks... for the details. If someone ran a high-quality production load test with two implementations (Google definitely can do that), it would give us useful information. Disclaimer: I wrote the micro-benchmarks referenced above and parts of Swiss Table. I'm no longer with Google.